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@uiten tutesstmt @High S'IIPPIEN` W. LONG, OF LO UISVILLE', KENTUCKY Letters Patent No. 70,585, elated- Nocember 5, 1867.

IMPROVED BRICK MACHINE.

TO'ALL WHOM IT MAY OONCERN:

Be it known that I, STEPHEN W. LONG, of Louisville, Jefferson county, Kentucky, have invented a new and useful Brick Machine; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification.'

My invention relates to an arrangement of parts, whereby'at cach stroke of the machine a certain and uniform quantum of clay is measured off and subjected to the successive action of two compressing-plungers operating in4 connection with a suitable sliding mould, from which the clay is ejected in the form of bricks. after having been thoroughly 'and uniformly compressed and kneaded.

Figure 1 is a sectional elevation of a brick machine embodying my invention.

Figure 2 is a. similar view, representing the operating parts in a position the reverse of that in which they are shown in iig. 1.

Figure 3 is a. detailed perspective view of the brick-moulds.

A represents a strong frame in which the several operating devices are mounted. B is the'driving-shaft, which through suitable gearing communicates a rotary motion to the spiral mixer and ejector C, which is journalled in the pug-mill or mud-box D. vE is a lever, having pvoted support upon the upright F, and vibrated in a vertical plane by motion derived from the driving-shaft Bthrough the medium of thc cam B', y'ole B", and connecting-rod G. By means of connecting-rods H H' the lever Eis made to impart a vertical reciprocating motion to a plunger, I, and also to a box or frame, J, in which any desired number of moulds J' J' are formed. K K are plungers, reciprocating horizontally, one above the other, and moving alternately in opposite directions. The pluugers KA K' receive motion from the driving-shaft B through the medium of the eccentric M, connecting-rods L L' L", and vibrating lever N, the latter-'being mounted upon the rock-shaft N'. The chambersin which the several plungers and mould-box traverse, und which guide the same in their operating positions, are formed in the frame or casting O. I I

In operation, the rotation of the spiral blade ofGejects theclay from box D through the throat D', whence it is forced into chamber oimmediately beneath plungerl.' Thelatterdescends and serves to cut oif or separate a definite quantity of clay in chamber o from that within the mud-box. The mud thus cut oi is forced downward through chamber o into the chamber o', the plunger K having been previously retracted.. While under the action of plunger K, the clay is enclosed on three sides by the walls of the chamber 0,'and is liaclied up'by the plunger K, so that-before the clay is finally compressed in the moulds, it undergoesa certain amount of effective compression, and is caused to assume the block-form represented at P, iig. 2.-l At the lower extremity of its'strolee the plunger I has an interval of rest.,- during which the plungerK is moved forward suiiciently to" close communication between the chambers o and o' upon which the accelerating action of the cam B' elevatcs the plunger I and mould-box J, 'the latter being brought to a position in line with the chamber o' just in time to receive the clay P, which is forcibly driven or-pressed into the moulds J' J' by the continued forward motion of the plunger K'. The moulds having been thus charged with clay, are depressed to a position in line with chamber o". when the forward motion of plunge'r'K' servesto eject the pressed bricks from the moulds J',vas represented in fig. 2. The bricks are received' upon an endless apron, a, which conveys them to a place of deposit or delivery, said apronvbeing driven by any suitable connection with themain driving-shaft. Assoon v as the mould-box J commences to descend, the plunger K is retracted to admit into theA chamber 0' another quantum of clay from mud-box D, which clay is cnt oifand compressed by plunger I, and then forced into the moulds J' and discharged, as already explained. AThe edges of the moulds J' J', at their receiving sides, are

chamfered, as shown at j, ltoinsure the ready entrance ofthe pl-un-gers. The compressive l:ict-ion of the plungers I and K in opposite directions serves' to give the clay n uniform solidity or body, and enables me to manufacture pressed bricks of superior quality.

I claim herein as new, and of my invention 1. The arrangementina briclcmachine of' two plnngers IK, so as -to form a measure, and to exert upon the clay compressive forces in directions perpendicular to each other, substantially as'described.

2. The combination of the plnngers I K K', .sliding moulds J J' chambers o e'o", and pug-mill GD, allI arranged and operating substantially as and for the purpose herein'specifed. v

In testimony of which invention I hereunto set my hand.

STEPHEN` W. LONG.

Witnesses:

E. C. CoLeAN, A. LONG.' 

